Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / vfprintf.c
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1/*
2 * Copyright (c) 1995
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22#ifndef lint
23static const char rcsid[] _U_ =
24 "@(#) $Header: /tcpdump/master/tcpdump/vfprintf.c,v 1.6 2003/11/16 09:36:45 guy Exp $ (LBL)";
25#endif
26
27#ifdef HAVE_CONFIG_H
28#include "config.h"
29#endif
30
31#include <sys/types.h>
32
33#include <stdio.h>
34#include <stdarg.h>
35#include <stdlib.h>
36#include <unistd.h>
37
38#include "interface.h"
39
40/*
41 * Stock 4.3 doesn't have vfprintf.
42 * This routine is due to Chris Torek.
43 */
44vfprintf(f, fmt, args)
45 FILE *f;
46 char *fmt;
47 va_list args;
48{
49 int ret;
50
51 if ((f->_flag & _IOWRT) == 0) {
52 if (f->_flag & _IORW)
53 f->_flag |= _IOWRT;
54 else
55 return EOF;
56 }
57 ret = _doprnt(fmt, args, f);
58 return ferror(f) ? EOF : ret;
59}